Determination of glass transition temperature,thermal expansion and,shrinkage of epoxy resins |
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| Authors: | J Kulawik Z Szeglowski T Czapla J P Kulawik |
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| Institution: | (1) Present address: Institute of Nuclear Physics, Kraków, Poland;(2) Research and Development Center of Hybrid Microelectronics and Resistors, Kraków, Poland |
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| Abstract: | On the basis of measurements of linear thermal expansion of hardened epoxy resins the influence of some modifiers on the thermal expansion of epoxy resin Epidian-5 has been examined. The glass transition temperatures of examined samples were determined.The paper presents also results of the examinations of changes in thermal and cure shrinkage for epoxy resins that occur under the influence of such modifiers as plasticizers and fillers.Five different compositions were examined. A simple and fast measuring method was applied, in which sample elongations vs temperature were determined with a cathetometer. Specific volume changes of liquid resins with temperature were measured with a quartz dilatometer and a cathetometer. |
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| Keywords: | Epoxy resins glass transition temperature thermal expansion coefficient shrinking processes |
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